There are some scenes in the game (like this one - those who played Kana will probably remember it) where you can't fast-click your way through the text lines as there's some delay after each line is printed. The value for the delay is calculated based on the playback position within the currently playing audio track. The previous versions of the patch contained a bug which prevented the game from properly calculating the value and as a result the delay couldn't be implemented. The bug is now fixed, see the updated link in the previous post.